PLEASE HELP Tom goes on a bike ride leaving from his house. Her heads north from two miles and heads west for another mile and a half where he comes to the end of the road and has to turnback. He rides back east for a mile and a half at which point he turns south heading back towards his house. However along the way his friend Ted calls him and invites him to play video games. Ted lives two miles south of toms house. What's the distance and displacement.

carbon atoms, hydrogen, oxygen, and nitrogen.

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.

several tissues working together form an organ, and several organs together make up an organisms.

the group of cell that carries out special jobs are tissue.